numpy.polynomial.laguerre.poly2lag#
- polynomial.laguerre.poly2lag(pol)[source]#
Convert a polynomial to a Laguerre series.
Convert an array representing the coefficients of a polynomial (relative to the “standard” basis) ordered from lowest degree to highest, to an array of the coefficients of the equivalent Laguerre series, ordered from lowest to highest degree.
- Parameters:
- polarray_like
1-D array containing the polynomial coefficients
- Returns:
- cndarray
1-D array containing the coefficients of the equivalent Laguerre series.
See also
Notes
The easy way to do conversions between polynomial basis sets is to use the convert method of a class instance.
Examples
>>> import numpy as np >>> from numpy.polynomial.laguerre import poly2lag >>> poly2lag(np.arange(4)) array([ 23., -63., 58., -18.])